Fiber-Bragg-grating-based ultrathin shape sensors displaying single-channel sweeping for minimally invasive surgery

Moon, Hee‐Jong; Jeong, Jin‐Woo; Kang, Sungchul; Kim, Keri; Song, Yong‐Won; Kim, Jinseok

doi:10.1016/j.optlaseng.2014.03.005

Cited by 46 publications

(27 citation statements)

References 16 publications

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“…In an in vivo context, in which the probe is integrated into a medical device such as a needle or a catheter, obtaining accurate measurements of its spatial position/orientation at different times as it is moved in the body in order to obtain a virtual array of ultrasound transmitters/receivers is likely to be challenging. This challenge could potentially be met with the use of fiber Bragg gratings or electromagnetic sensors [29,30]. Alternatively, a flexible fiber bundle could be used to scan excitation light to a series of specific spatial locations across an optically absorbing film.…”

Section: Discussionmentioning

confidence: 99%

Broadband miniature optical ultrasound probe for high resolution vascular tissue imaging

Colchester

Zhang

Mosse

et al. 2015

Biomed. Opt. Express

107

136

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An all-optical ultrasound probe for vascular tissue imaging was developed. Ultrasound was generated by pulsed laser illumination of a functionalized carbon nanotube composite coating on the end face of an optical fiber. Ultrasound was detected with a Fabry-Pérot (FP) cavity on the end face of an adjacent optical fiber. The probe diameter was < 0.84 mm and had an ultrasound bandwidth of ~20 MHz. The probe was translated across the tissue sample to create a virtual linear array of ultrasound transmit/receive elements. At a depth of 3.5 mm, the axial resolution was 64 µm and the lateral resolution was 88 µm, as measured with a carbon fiber target. Vascular tissues from swine were imaged ex vivo and good correspondence to histology was observed.

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Section: Discussionmentioning

confidence: 99%

Broadband miniature optical ultrasound probe for high resolution vascular tissue imaging

Colchester

Zhang

Mosse

et al. 2015

Biomed. Opt. Express

107

136

View full text Add to dashboard Cite

show abstract

“…The expression of A in (19) shows that the frame (T, N 1 , N 2 ) satisfies parallel transport properties. Such frames are called rotation-minimizing frames and are characterized by their stability and their absence of singularities compared to other frames such as Serret-Frenet [30].…”

Section: Beam Shape Reconstructionmentioning

confidence: 99%

“…The topic of using strain measures for beam shape monitoring has been widely covered in the litterature on both theoretical [10,11,12,13,14] and applied aspects, such as needles deflections during medical intervention [4,5,15] or bridge deformation over time [16]. The strain measures are acquired through technologies such as strain gauges [10,13,17], or fiber Bragg gratings [16,18,19,20,21] and are used to obtain deformations of the beam. Depending on the orientations of the sensors these measures can be used to recover the different deformations of the beam such as bending [12], torsion [22] and shearing and elongation [14].…”

Section: Introductionmentioning

confidence: 99%

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Strain Gauges Based 3D Shape Monitoring of Beam Structures Using Finite Width Gauge Model

et al. 2019

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This paper presents a new approach validated experimentally to reconstruct with strain gauges the deformed shape of a straight beam with circular cross section. It is based on a novel beam-specific strain gauge model that improves the strain measurement by taking into account the width of the gauges. These improved strain measurements are used by a 3D finite strain large displacement beam shape reconstruction method to recover the deformed shape iteratively. The whole reconstruction approach has been validated experimentally with 3D deformations of a beam instrumented with strain gauges. Results show that the strain gauge model developed improves reconstruction accuracy and that beam reconstruction can be achieved effectively.

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“…A multi-core FBG can detect larger curvature than previous kinds, but each fiber core must be separated sufficiently to avoid core–core interaction. Similar to multi-core fiber, Moon et al assembled three FBG optical fibers in a triangular shape molded with epoxy [21]. Among all previous work, the maximum curvature detected was 22.7m −1 [17].…”

Section: Introductionmentioning

confidence: 99%

Shape Tracking of a Dexterous Continuum Manipulator Utilizing Two Large Deflection Shape Sensors

et al. 2015

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Dexterous continuum manipulators (DCMs) can largely increase the reachable region and steerability for minimally and less invasive surgery. Many such procedures require the DCM to be capable of producing large deflections. The real-time control of the DCM shape requires sensors that accurately detect and report large deflections. We propose a novel, large deflection, shape sensor to track the shape of a 35 mm DCM designed for a less invasive treatment of osteolysis. Two shape sensors, each with three fiber Bragg grating sensing nodes is embedded within the DCM, and the sensors’ distal ends fixed to the DCM. The DCM centerline is computed using the centerlines of each sensor curve. An experimental platform was built and different groups of experiments were carried out, including free bending and three cases of bending with obstacles. For each experiment, the DCM drive cable was pulled with a precise linear slide stage, the DCM centerline was calculated, and a 2D camera image was captured for verification. The reconstructed shape created with the shape sensors is compared with the ground truth generated by executing a 2D–3D registration between the camera image and 3D DCM model. Results show that the distal tip tracking accuracy is 0.40 ± 0.30 mm for the free bending and 0.61 ± 0.15 mm, 0.93 ± 0.05 mm and 0.23 ± 0.10 mm for three cases of bending with obstacles. The data suggest FBG arrays can accurately characterize the shape of large-deflection DCMs.

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Fiber-Bragg-grating-based ultrathin shape sensors displaying single-channel sweeping for minimally invasive surgery

Cited by 46 publications

References 16 publications

Broadband miniature optical ultrasound probe for high resolution vascular tissue imaging

Broadband miniature optical ultrasound probe for high resolution vascular tissue imaging

Strain Gauges Based 3D Shape Monitoring of Beam Structures Using Finite Width Gauge Model

Shape Tracking of a Dexterous Continuum Manipulator Utilizing Two Large Deflection Shape Sensors

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